FolderEvent e = new FolderEvent(this, folder); // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == IFolderListener.class) { ((IFolderListener) listeners[i + 1]).folderAdded(e); } }
MailCheckingEvent e = new MailCheckingEvent(this, ref); // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == IMailCheckingListener.class) { ((IMailCheckingListener) listeners[i + 1]).newMessageArrived(e); } }
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/mail/src/main/java/org/columba/mail/folder/AbstractFolder.java File path: /columba-1.4-src/mail/src/main/java/org/columba/mail/mailchecking/MailCheckingManager.java
Method name: void fireFolderAdded(IMailFolder) Method name: void fireNewMessageArrived(IMailFolderCommandReference)
Number of AST nodes: 5 Number of AST nodes: 5
1
FolderEvent e = new FolderEvent(this, folder);
1
MailCheckingEvent e = new MailCheckingEvent(this, ref);
2
		// Guaranteed to return a non-null array
2
		// Guaranteed to return a non-null array
3
		Object[] listeners = listenerList.getListenerList();
3
		Object[] listeners = listenerList.getListenerList();
4
		// Process the listeners last to first, notifying
4
		// Process the listeners last to first, notifying
5
		// those that are interested in this event
5
		// those that are interested in this event
6
		for (int i = listeners.length - 2; i >= 0; i -= 2) {
6
		for (int i = listeners.length - 2; i >= 0; i -= 2) {
7
			if (listeners[i] == IFolderListener.class) {
7
			if (listeners[i] == IMailCheckingListener.class) {
8
				((IFolderListener) listeners[i + 1]).folderAdded(e);
8
				((IMailCheckingListener) listeners[i + 1]).newMessageArrived(e);
9
			}
9
			}
10
		}
10
		}
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.5
Clones locationClones are in different classes
Number of node comparisons7
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)7.0
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    FolderEvent e = new FolderEvent(this, folder);
    1
    FolderEvent e = new FolderEvent(this, folder);
    1
    MailCheckingEvent e = new MailCheckingEvent(this, ref);
    Differences
    Expression1Expression2Difference
    org.columba.mail.folder.event.FolderEventorg.columba.mail.mailchecking.MailCheckingEventSUBCLASS_TYPE_MISMATCH
    org.columba.mail.folder.event.FolderEventorg.columba.mail.mailchecking.MailCheckingEventSUBCLASS_TYPE_MISMATCH
    org.columba.mail.folder.event.FolderEventorg.columba.mail.mailchecking.MailCheckingEventSUBCLASS_TYPE_MISMATCH
    folderrefVARIABLE_NAME_MISMATCH
    org.columba.mail.folder.IMailFolderorg.columba.mail.command.IMailFolderCommandReferenceVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Expression new FolderEvent(this,folder) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression new MailCheckingEvent(this,ref) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type org.columba.mail.folder.IMailFolder of variable folder does not match with type org.columba.mail.command.IMailFolderCommandReference of variable ref
    • Make classes org.columba.mail.folder.IMailFolder and org.columba.mail.command.IMailFolderCommandReference extend a common superclass
    1
    MailCheckingEvent e = new MailCheckingEvent(this, ref);
    2
    Object[] listeners = listenerList.getListenerList();
    2
    Object[] listeners = listenerList.getListenerList();
    3
    for (int i = listeners.length - 2; i >= 0; i -= 2)
    3
    for (int i = listeners.length - 2; i >= 0; i -= 2)
    4
    if (listeners[i] == IFolderListener.class)
    4
    if (listeners[i] == IFolderListener.class)
    4
    if (listeners[i] == IMailCheckingListener.class)
    Differences
    Expression1Expression2Difference
    IFolderListener.classIMailCheckingListener.classLITERAL_VALUE_MISMATCH
    4
    if (listeners[i] == IMailCheckingListener.class)
    5
    ((IFolderListener)listeners[i + 1]).folderAdded(e);
    5
    ((IFolderListener)listeners[i + 1]).folderAdded(e);
    5
    ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e);
    Differences
    Expression1Expression2Difference
    org.columba.mail.folder.event.FolderEventorg.columba.mail.mailchecking.MailCheckingEventSUBCLASS_TYPE_MISMATCH
    folderAddednewMessageArrivedMETHOD_INVOCATION_NAME_MISMATCH
    org.columba.mail.folder.event.IFolderListenerorg.columba.mail.mailchecking.IMailCheckingListenerVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Expression ((IFolderListener)listeners[i + 1]).folderAdded(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((IFolderListener)listeners[i + 1]).folderAdded(e) is a void method call, and thus it cannot be parameterized
    Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) is a void method call, and thus it cannot be parameterized
    Expression (IFolderListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (IMailCheckingListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type org.columba.mail.folder.event.IFolderListener does not match with type org.columba.mail.mailchecking.IMailCheckingListener
    • Make classes org.columba.mail.folder.event.IFolderListener and org.columba.mail.mailchecking.IMailCheckingListener extend a common superclass
    5
    ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e);
    Precondition Violations (11)
    Row Violation
    1Expression new FolderEvent(this,folder) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression new MailCheckingEvent(this,ref) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Type org.columba.mail.folder.IMailFolder of variable folder does not match with type org.columba.mail.command.IMailFolderCommandReference of variable ref
    4Expression ((IFolderListener)listeners[i + 1]).folderAdded(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression ((IFolderListener)listeners[i + 1]).folderAdded(e) is a void method call, and thus it cannot be parameterized
    7Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) is a void method call, and thus it cannot be parameterized
    8Expression (IFolderListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    9Expression (IMailCheckingListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    10Type org.columba.mail.folder.event.IFolderListener does not match with type org.columba.mail.mailchecking.IMailCheckingListener
    11The refactoring of the clones is infeasible, because classes org.columba.mail.folder.AbstractFolder and org.columba.mail.mailchecking.MailCheckingManager do not have a common superclass